Build - JC Designs Goblin 570 Conversion

[HelisRock]

Originally Posted by Sowa

Hard to believe but I flew this model in 15HZ trim for a whole season. Just decided to dable in Nitro again. My 15HZ is still healthy and on the shelf.

In gas trim it's close to a 50 class nitro. Makes flying cheap.

In Nitro trim it basically feels like an electric that smokes.

I honestly think that this airframe, is the most flexible IC design on the market right now. It can carry anywhere from 4 to 20oz of fuel, swing a 550 to 620mm blade with a decent selection in gear ratios, in either gas or nitro trim.

If only it was available to us mere mortals...

[paschgu]

Hello everybody,

This kit looks very interesting for me. Now I have two or three questions.

- Is it possible to use as YS91 ST engine ?
- how high will be the price for that kit?
- When will be the release date? Because on the HP says available in fall 2016.

Thank you for your feedbacks

Pascal

[carey shurley]

• there are both glow and gas versions
• technically you can use any glow engine that has a .9x format crankcase however I don't recommend you use anything larger than a .96 as you may have issues with vibration
• $479 for either version
• I have a small number of kits packed, I'd like to get them in the store next week.
• I'll also have a couple of Sports editions GT15-600 engines

[Doug Darby]

I have had good luck with an OS105 running a Dubro 14oz tank and getting 7+ minutes of flight time. Very little load on the OS105 with this size of heli and it is "Very" powerful as you would expect..

[ticedoff8]

Since I can't create a new thread, I'll post on this one:
How do I recreate the nose down stance after this upgrade?


As you may (or may not) know, the racked stance on the ground is done in the Goblin 570's frame - not the landing gear struts. There is no "front" or "back" strut - they are both the same.
Since the nitro conversion kit uses the bottom plate to mount the engine, the side-frames are designed such that the bottom plate is "true" / "square" to the top-deck.
And, that eliminates the nose-down rack when resting on the landing gear.


"Who cares?" right?
Well, in my case, the tail squats down as the rear strut flexes as the weight settles - and the tailrotor blades dig into the dirt.
I've changed from the old style CF skids to the "Sport" style skid-pipes and because the struts are the same type of plastic, it is still a problem.


If I wrap a Velcro battery strap around the two skid-pipes behind the rear skid, I can cinch the strap tight and draw the skid-pipes closer. That will raise the tail about 1" and they don't flex under the helis weight.


If this was a Trex 700N, I would just add a 2nd set of rear skids.


Any suggestions?

[ChrisMatthews]

Is there a smaller drive pulley available than the stock 34 tooth that comes with the conversion kit? Id like to make a little more torque swinging rail 606s.

[carey shurley]

32 or 36 tooth pulleys can be special ordered, also requires a different belt to adapt the different setups